Automation industry：

The frequency conversion speed regulation can start at zero speed and accelerate evenly according to the needs of users, and its acceleration curve can also be selected (linear acceleration, S-shaped acceleration or automatic acceleration). The running speed can be adjusted at any time as needed, and can be changed quickly according to the technological process, and the speed can also be changed by remote control plc or other controllers.

Petrochemicals：

Electricity accounts for about 40% of the total electricity consumption of the oilfield. The operating efficiency is very low. The average operating efficiency is only 25%. The power factor is low and the electric energy is wasted. Therefore, the potential for energy conservation in oil fields is huge, and the petroleum industry is also a key industry to promote "energy conservation in motor systems". ZEST frequency conversion speed regulation technology is adopted to adapt the movement law of the pumping unit to the changing working conditions of the oil well, to improve the efficiency of the system, and achieve the purpose of energy saving and production increase。

Water treatment：

The water treatment process can be divided into pretreatment process, primary treatment process, secondary treatment process, advanced treatment process, sludge treatment process and final sludge treatment process. In addition, the speed of the pump can be reduced when the flow is low. On the other hand, the pump is at full load for a long time, which can avoid the early deterioration of the motor. In addition, the soft start of the inverter greatly reduces the impact on the machine when the pump is started. , At the same time, it has obvious power saving effect.

Machining：

When starting through the power frequency, the motor or the connected mechanical part shaft or gear will produce violent vibration. This vibration will further aggravate mechanical wear and loss and reduce the life of mechanical components and motors. In frequency conversion speed regulation, the stop mode can be controlled, and there are different stop modes to choose from (deceleration stop, free stop, deceleration stop + DC braking), which can reduce the impact on mechanical components and motors, so that the entire system It is more reliable, and the life span will increase accordingly, and the system stability will be improved.